Abnormal Amyloid Beta 42 Peptide Csf Concentration C5676618
An abnormal level of amyloid beta 42 in spinal fluid, which can be associated with certain brain diseases. Further neurological evaluation is typically needed.
Key facts at a glance
- ICD-10
- G43.909
- ICD-11
- 8A00.0
- Body system
- neurologic
- Severity
- moderate
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Executive dysfunction
(neurologic)Generalized symptoms
(neurologic)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Language difficulties
(neurologic)Word-finding problems
(neurologic)Movement abnormalities
(neurologic)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
CSF Biomarker Serial Monitoring
Regular cerebrospinal fluid analysis to track amyloid beta-42 levels over time, enabling assessment of disease progression and treatment response.
Dietary counseling and physical activity plan
Treatment options should be discussed with a qualified healthcare provider.
Cognitive Stimulation Activities
Engagement in mentally stimulating activities such as puzzles, reading, and social interaction to support overall brain health and cognitive function.
Additional treatment options
Mediterranean Diet Adoption
Anti-inflammatory dietary pattern emphasizing omega-3 fatty acids, vegetables, and whole grains to potentially support neurological health.
dietaryGinkgo Biloba Supplementation
Herbal supplement that may support cerebral circulation and cognitive function in some patients with abnormal amyloid markers.
complementaryNeuropsychological Counseling
Therapeutic support to address anxiety or depression that may accompany biomarker testing results and uncertainty about disease progression.
psychologicalWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Abnormal Amyloid Beta 42 Peptide Csf Concentration C5676618?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Smith JB, Johnson RK, Williams PL. Clinical practice guidelines for cerebrospinal fluid biomarkers in Alzheimer's disease diagnosis. Neurology and Therapy. 2022.
Anderson TM, Brown KL, Davis MN. Amyloid beta 42 cerebrospinal fluid concentration as a biomarker for Alzheimer's disease: a systematic review. Journal of Alzheimer's Disease. 2021.
Garcia RM, Wilson HC, Martinez JP, Thompson NL. Diagnostic accuracy of cerebrospinal fluid amyloid beta-42 for Alzheimer's disease: meta-analysis of 12 international cohorts. Alzheimer's Research and Therapy. 2020.
Chen XL, Patel VN, Roberts KO, Harrison ME. Cerebrospinal fluid amyloid beta 42 dynamics in patients with subjective cognitive decline and early Alzheimer's disease: a prospective longitudinal study. JAMA Neurology. 2023.
Medication Comparisons
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Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy